Relationship between the Estimated Glomerular Filtration Rate and the Urine Microalbumin/Creatinine Ratio and Ferritin in Korean Adults

한국 성인에서 사구체여과율 및 요 중 미세알부빈/크레아티닌 비율과 페리틴의 관련성

This study examined the relationship between the estimated glomerular filtration rate (eGFR) and urine microalbumin/creatinine ratio (uACR) with ferritin in Korean adults. This study included 4,948 adults aged ${\geq}20years$ from the 2012 Korea National Health and Nutrition Examination Survey (KNHANES) data. A covariance test adjusted for covariates was performed for the ferritin levels in relation to the decreased eGFR (eGFR<$60ml/min/1.73m^2$) and elevated uACR ($uACR{\geq}30mg/g$). Several key findings were made in the present study. First, after adjusting for the related variables, the ferritin level was higher in the decreased eGFR group [$103.04{\pm}6.59mL/min/1.73m^2$; 95% confidence interval (CI), 90.12~115.96] than in the normal eGFR group ($84.87{\pm}1.16mL/min/1.73m^2$; 95% CI, 82.59~87.14; P=0.007). Second, after adjusting for the related variables, the ferritin level ($M{\pm}SE$) was similar in the normal uACR group ($85.70{\pm}1.20mg/g$; 95% CI, 83.35~88.05) and elevated uACR group ($82.72{\pm}4.09mg/g$; 95% CI, 74.71~90.73) (P=0.487). Chronic kidney disease was positively associated with the ferritin level in Korean adults but albuminuria was not.

본 연구는 대한민국 성인에서 eGFR 및 uACR과 Ferritin의 관련성에 대한 연구이다. 2012년 국민건강영양조사자료에서 20세 이상의 4,948명을 대상으로 관련변수를 보정한 후, 만성신장질환(CKD, eGFR<$60mL/min/1.73m^2$) 및 알부민뇨($uACR{\geq}30mg/g$)에 따른 페리틴 수준을 분석하였다. 만성신장질환군의 ferritin 수준($M{\pm}SE$) [$103.04{\pm}6.59mL/min/1.73m^2$; 95% confidence interval (CI), 90.12~115.96]은 정상군($84.87{\pm}1.16mL/min/1.73m^2$; 95% CI, 82.59~87.14)에 비하여 유의하게 높았다(P=0.007). 그러나 정상군($82.72{\pm}4.09mg/g$; 95% CI, 74.71~90.73)과 알부빈뇨군($82.72{\pm}4.09mg/g$; 95% CI, 74.71~90.73)의 ferritin 수준은 유의한 차이가 없었다(P=0.487). 결과적으로, 대한민국 성인에서 만성신장질환과 ferritin수준은 양의 상관관계가 있었지만, 알부빈뇨에서는 유의한 차이가 없었다.